将数据库控制文件全部删除,模拟数据库控制文件全部丢失且没有备份,然后启动数据
SQL> startup; ORACLE instance started. Total System Global Area 1252663296 bytes Fixed Size 2252824 bytes Variable Size 704647144 bytes Database Buffers 536870912 bytes Redo Buffers 8892416 bytes ORA-00205: error in identifying control file, check alert log for more info SQL> shutdown immediate;
alert日志提示
ALTER DATABASE MOUNT ORA-00210: cannot open the specified control file ORA-00202: control file: '/oradata/eheng/control02.ctl' ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 ORA-00210: cannot open the specified control file ORA-00202: control file: '/oradata/eheng/control01.ctl' ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 ORA-205 signalled during: ALTER DATABASE MOUNT...
从提示中可以看出数据库在mount阶段找不到控制文件而报错
通过手动创建控制文件来拉起数据库,查看数据文件、redo日志文件
[root@eheng eheng]# ls -lsa total 5115400 4 drwxr-x---. 2 oracle oinstall 4096 Aug 24 09:32 . 4 drwxr-xr-x. 7 oracle oinstall 4096 Aug 24 09:31 .. 524296 -rw-r-----. 1 oracle oinstall 536871424 Aug 24 09:33 redo01.log 524296 -rw-r-----. 1 oracle oinstall 536871424 Aug 24 09:33 redo02.log 524296 -rw-r-----. 1 oracle oinstall 536871424 Aug 24 09:33 redo03.log 524296 -rw-r-----. 1 oracle oinstall 536871424 Aug 24 09:33 redo04.log 524296 -rw-r-----. 1 oracle oinstall 536871424 Aug 24 09:43 redo05.log 1048588 -rw-r-----. 1 oracle oinstall 1073750016 Aug 24 09:33 roobbin01.dbf 522252 -rw-r-----. 1 oracle oinstall 534781952 Aug 24 09:38 sysaux01.dbf 757772 -rw-r-----. 1 oracle oinstall 775954432 Aug 24 09:43 system01.dbf 1024 -rw-r-----. 1 oracle oinstall 30416896 Aug 24 09:39 temp01.dbf 76812 -rw-r-----. 1 oracle oinstall 78651392 Aug 24 09:38 undotbs01.dbf 5128 -rw-r-----. 1 oracle oinstall 5251072 Aug 24 09:33 users01.dbf
将数据库启动到nomount状态,重建控制文件
SQL> startup nomount; ORACLE instance started. Total System Global Area 1252663296 bytes Fixed Size 2252824 bytes Variable Size 704647144 bytes Database Buffers 536870912 bytes Redo Buffers 8892416 bytes --重建控制文件不需要临时数据文件,控制文件重建成功重用临时数据文件即可 CREATE CONTROLFILE REUSE DATABASE "EHENG" NORESETLOGS NOARCHIVELOG MAXLOGFILES 16 MAXLOGMEMBERS 3 MAXDATAFILES 8192 MAXINSTANCES 8 MAXLOGHISTORY 292 LOGFILE GROUP 1 '/oradata/eheng/redo01.log' SIZE 512M BLOCKSIZE 512, GROUP 2 '/oradata/eheng/redo02.log' SIZE 512M BLOCKSIZE 512, GROUP 3 '/oradata/eheng/redo03.log' SIZE 512M BLOCKSIZE 512, GROUP 4 '/oradata/eheng/redo04.log' SIZE 512M BLOCKSIZE 512, GROUP 5 '/oradata/eheng/redo05.log' SIZE 512M BLOCKSIZE 512 -- STANDBY LOGFILE DATAFILE '/oradata/eheng/system01.dbf', '/oradata/eheng/sysaux01.dbf', '/oradata/eheng/undotbs01.dbf', '/oradata/eheng/users01.dbf', '/oradata/eheng/roobbin01.dbf' CHARACTER SET ZHS16GBK ; Control file created. --打开数据库 SQL> alter database open; Database altered. --重用临时文件 SQL> alter tablespace temp add tempfile '/oradata/eheng/temp01.dbf' reuse; Tablespace altered.
至此,控制文件手动创建成功, 数据库正常启动
SQL> select instance_name,status from v$instance; INSTANCE_NAME STATUS ---------------- --------------------------------------------- eheng OPEN SQL>
标签:oinstall,24,Aug,备份,09,eheng,oradata,丢失,Oracle From: https://www.cnblogs.com/Roobbin/p/16618817.html